Fix #57: Fix handling of scala.quoted opening quotes

* Remove `'(` as a opening quote
* Make sure that `'{`/`'[` is not followed by `'`

Author: nicolasstucki

src/typescript/Scala.tmLanguage.ts

@@ -434,7 +434,7 @@ export const scalaTmLanguage: TmLanguage = {
       ]
     },
     'scala-quoted': {
-      match: "'\\{'|'\\('|'\\['|'\\{|'\\(|'\\[",
+      match: "('\\{|'\\[)(?!')",
       name: 'constant.other.quoted.scala'
     },
     'xml-doublequotedString': {

syntaxes/Scala.tmLanguage.json

@@ -0,0 +1,21 @@
+// SYNTAX TEST "source.scala"
+
+   '['
+// ^ punctuation.definition.character.begin.scala
+//  ^ constant.character.literal.scala
+//   ^ punctuation.definition.character.end.scala
+
+   '{'
+// ^ punctuation.definition.character.begin.scala
+//  ^ constant.character.literal.scala
+//   ^ punctuation.definition.character.end.scala
+
+   '('
+// ^ punctuation.definition.character.begin.scala
+//  ^ constant.character.literal.scala
+//   ^ punctuation.definition.character.end.scala
+
+   '\n'
+// ^ punctuation.definition.character.begin.scala
+//  ^^ constant.character.literal.scala
+//    ^ punctuation.definition.character.end.scala

tests/unit/#57.test.scala

@@ -0,0 +1,11 @@
+// SYNTAX TEST "source.scala"
+
+   '{ 2 }
+// ^^ constant.other.quoted.scala
+//    ^ constant.numeric.scala
+//      ^ punctuation.section.block.end.scala
+
+   '[ String ]
+// ^^ constant.other.quoted.scala
+//    ^^^^^^ storage.type.scala
+//           ^ meta.bracket.scala